Balloon Popping meter: as the children sing well, a leader pulls on the ribbon from behind. If the kids have mastered a song, the balloon makes it to the top, where it is popped. If all the songs are mastered, the kids get tootsie "pops.
Discover how breathing for singing is different from breathing at rest. Additional tip is learn how to stomach breathe. Eg, lay on your stomach and breathe using your stomach muscles to lift yourself up, now use these muscles while standing.